MAKING A BAKING SODA AND VINEGAR VOLCANO
For Tasha and I's experiment, we well be trying to make a baking soda and vinegar volcano.The baking soda and vinegar volcano is a chemistry project you can use to simulate a real volcanic eruption, as an example of an acid-base reaction. The chemical reaction between baking soda and vinegar will produce carbon dioxide gas, which forms bubbles in the dishwashing detergent.
MATERIALS:
3 cups flour
1 cup salt
2 tablespoons cooking oil
empty 20-oz drink bottle
deep plate or a pan
gel food coloring
dishwashing detergent
baking soda (sodium bicorbonate)
vinegar (dilute acetic acid)
STEPS:
1. Make the Volcano dough by mixing together 3 cups of flour, 1 cup of salt, and 2 tablespoons of cooking oil.
2. Fill the empty 20-oz bottle almost to the top with hot tap water.
3. Add a squirt of dishwashing detergent and 2 tablespoons of baking soda.
4. Press the dough around the bottle so it takes the shape of a Volcano. Make sure to leave the opening of the bottle open.
5. To get the reaction, pour vinegar into the opening of the bottle and make observations of the reaction.
HOW DOES IT RELATE TO CHEMISTRY?
"The baking soda and vinegar volcano erupts because of an acid-base reaction:
baking soda (sodium bicarbonate) + vinegar (acetic acid) --> carbon dioxide + water + sodium ion + acetate ion NaHCO3(s) + CH3COOH(l) --> CO2(g) + H2O(l) + Na+(aq) + CH3COO-(aq)
where s = solid, l = liquid, g = gas, aq = aqueous or in solution
Breaking it down:
NaHCO3 <--> Na+(aq) + HCO3-(aq)
CH3COOH <--> H+(aq) + CH3COO-(aq)
H+ + HCO3- <--> H2CO3 (carbonic acid)
H2CO3 <--> H2O + CO2
Acetic acid (a weak acid) reacts with and neutralizes sodium bicarbonate (a base). The carbon dioxide that is given off is a gas. Carbon dioxide is responsible for the fizzing and bubbling during the 'eruption'. " (Anne Marie Helmenstine- chemistry.about.com)
For Tasha and I's experiment, we well be trying to make a baking soda and vinegar volcano.The baking soda and vinegar volcano is a chemistry project you can use to simulate a real volcanic eruption, as an example of an acid-base reaction. The chemical reaction between baking soda and vinegar will produce carbon dioxide gas, which forms bubbles in the dishwashing detergent.
MATERIALS:
STEPS:
1. Make the Volcano dough by mixing together 3 cups of flour, 1 cup of salt, and 2 tablespoons of cooking oil.
2. Fill the empty 20-oz bottle almost to the top with hot tap water.
3. Add a squirt of dishwashing detergent and 2 tablespoons of baking soda.
4. Press the dough around the bottle so it takes the shape of a Volcano. Make sure to leave the opening of the bottle open.
5. To get the reaction, pour vinegar into the opening of the bottle and make observations of the reaction.
HOW DOES IT RELATE TO CHEMISTRY?
"The baking soda and vinegar volcano erupts because of an acid-base reaction:
baking soda (sodium bicarbonate) + vinegar (acetic acid) --> carbon dioxide + water + sodium ion + acetate ion
NaHCO3(s) + CH3COOH(l) --> CO2(g) + H2O(l) + Na+(aq) + CH3COO-(aq)
where s = solid, l = liquid, g = gas, aq = aqueous or in solution
Breaking it down:
NaHCO3 <--> Na+(aq) + HCO3-(aq)
CH3COOH <--> H+(aq) + CH3COO-(aq)
H+ + HCO3- <--> H2CO3 (carbonic acid)
H2CO3 <--> H2O + CO2
Acetic acid (a weak acid) reacts with and neutralizes sodium bicarbonate (a base). The carbon dioxide that is given off is a gas. Carbon dioxide is responsible for the fizzing and bubbling during the 'eruption'. " (Anne Marie Helmenstine- chemistry.about.com)
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